Calculating machine for performing division



Nov. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 35 Sheets-Sheet 1 Nov. 9, 1965 x H. J. CHALL 3,216,657

CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 35 Sheets-Sheet 2 LID FIE.

Y 1955 I H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 35 Sheets-Sheet 3 Nov. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25. 1963 55 Sheets-Sheet 4 Nov. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 65 Sheets-Sheet 5 III.

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CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 :55 Sheets-$heet 8 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1965 Nov. 9, 1965 55 Sheets-Sheet 9 Nov. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1965 35 Sheets-Sheet 1O H. J. CHALL 3,216,657

CALCULATING MACHINE FOR PERFORMING DIVISION 35 Sheets-Sheet 11 Nov. 9, 1965 Filed Jan. 25, 1963 Nov. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 55 Sheets-Sheet 12 mv. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan. 25, 1963 35 Sheets-Sheet 13 Nov. 9, 1965 H. J. CHALL CALCULATING MACHINE FOR PERFORMING DIVISION Filed Jan/25, 1963 35 Sheets-Sheet 14 -Wm WH-Hhiw Nov. 9, 1965 H. J. CHALL. 3,215,657

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1. IN A PRINTING CALCULATING MACHINE FOR DIVIDING HAVING SEPARATE REGISTERS FOR DIVIDEND, DIVISOR, AND QUOTIENT, FIRST MEANS OPERABLE FOR INITATING AN AUTOMATIC DIVISION PROGRAM, CAM MEANS RESPONSIVE TO THE ACTUATION OF SAID FIRST MEANS OPERABLE FOR AUTOMATICALLY: (A) CLEARING SAID QUOTIENT REGISTER, (B) PRINTING THE NUMBER IN THE DIVISOR REGISTER, (C) TESTING THE NUMBER IN THE DIVIDEND REGISTER, AND THIRD MEANS OPERABLE IN RESPONSE TO THE TEST OF SAID NUMBER IN THE DIVIDEND REGISTER FOR STOPPING SAID CAM MEANS AND INITIATING THE CALCULATION, SAID CAM MEANS BEING OPERABLE, WHEN NOT SO STOPPED, TO PREVENT THE CALCULATION. 